# NTSB Accident CEN22LA318
> **HILLER UH12E** · 2022-07-06 · Becker, MN, USA · SERS
## Event
- **NTSB number:** CEN22LA318
- **Event ID:** 20220718105500
- **Type:** Accident
- **Date:** 2022-07-06
- **Location:** Becker, MN, USA
- **Coordinates:** 45.394738, -93.872706
## Injuries
- **Highest injury:** SERS
- **Fatal:** 0
- **Serious:** 1
- **Minor:** 0
- **Uninjured:** 0
- **Total aboard:** 1
## Aircraft
- **Make:** HILLER
- **Model:** UH12E
- **Registration:** N64272
- **FAR Part:** 137
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

The in-flight failure of the main rotor mast hub due to several undetected fatigue fractures.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=CEN22LA318) · AI Analytics · CC0 1.0*